Hi, everyone, Happy holidays to you! I have a question: Has anyone noted any directional movements of Cloudless Sulphurs? In "Butterflies of the East Coast" Cech and Tudor write for this species, "Why large numbers fly far north in the fall, never to return, is a mystery." Has anyone seen this or any other north-south-east-west movements of this species? Rita Venable, Franklin, TN Williamson Co.